Cable tester 1.Connector types:XLR-3Pin,MID,RJ-45,S-Video,USB,DIN-8P,TACK 3. ... 5mm,RCA,Speakon-8P&4P,1/4"JACK, 2.Colour:black Cable tester ... cable tester set a multi plug-in device. Convenient for user operation testing.1. Test 11 different connector types. (XLR-3P, MID, RJ-45 ... . Test adapter cables and test "Y" cables Cable tester used by Musicians and sound engineers.